John Charles Haadsma, DMD
General Practice Dentistry · Saint Peters, MO
John Charles Haadsma, DMD is a general practice dentistry with a practice address in Saint Peters, Missouri, and NPI 1376232496, issued on May 4, 2023. Check the license (Missouri 2024022291, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Charles Haadsma
- Credential
- DMD
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- 2024022291 MO
Self-reported in NPPES; status is on the state search - Practice location
- 1185 Cave Springs Estate Dr, Saint Peters, MO 63376
- Phone
- (636) 757-1800
- Enumerated
- May 4, 2023
- Record last updated
- Jun 17, 2024
- Entity
- Type 1 · individual
Also registered at 1185 Cave Springs Estate Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Crabtree, DMDDentist1730224577
- Jennifer Horton, D.D.S., M.S.DOrthodontics and Dentofacial Orthopedics Dentistry1619020336
- Jagjot Kainth, DMDGeneral Practice Dentistry1174212468
- Kenneth Mueller, DDSDentist1295358612
- James Oslica, DDSGeneral Practice Dentistry1295353704
- Ransom Reed, D.D.S.Pediatric Dentistry1447395819
Verify John Charles Haadsma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2024022291Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% fewer Medicare Part D claims than the average general practice dentistry in 2024
40 Medicare Part D claims for 32 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D.
Most prescribed
- Amoxicillin25 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
31 general practice dentistry records list a practice address in Saint Peters
They are 31 of the 1,259 NPPES records with a practice address in Saint Peters, and 1,982 general practice dentistry records in Missouri.
All 31 in Saint Peters → All 1,982 in Missouri → Every provider in Saint Peters →
Other general practice dentistry records in Missouri
- Paria Abbassian, DDSFenton, MO1255907150
- Dennis Abbott, D.D.S.Joplin, MO1881602324
- Balsim Abdulwahed, DDSPlatte City, MO1366365744
- Michael Abels, D.D.S.Saint Louis, MO1467566471
- John Adams, D.D.S.Fredericktown, MO1881847531
- Robert Adams, D.D.S.Springfield, MO1194861377
- Byron AdenCape Girardeau, MO1093829020
- Adegbenga Adepoju, DMDSpringfield, MO1437687928
- Arsen Adjemian, D.D.S.Kansas City, MO1295768430
- Tasmeem Ahmad, DMDSaint Louis, MO1376985382
Common questions
What is John Charles Haadsma, DMD's NPI number?
John Charles Haadsma, DMD's National Provider Identifier (NPI) is 1376232496, issued on May 4, 2023. An NPI identifies a provider in billing; it is not a license.
Where is John Charles Haadsma, DMD located?
The NPPES record lists a practice address at 1185 Cave Springs Estate Dr, Saint Peters, MO, 63376. Phone: (636) 757-1800. Providers update this record themselves, so call before visiting.
How can I verify John Charles Haadsma, DMD's license?
NPPES lists Missouri license number 2024022291, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does John Charles Haadsma, DMD prescribe under Medicare Part D?
In 2024, John Charles Haadsma, DMD had 40 Medicare Part D claims for 32 beneficiaries; the average among general practice dentistry prescribers was 83. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.